The Luth-AR .308 A3 Upper Receiver (brand part no. 308-FTT-EA1) gives .308-pattern AR builders a solid foundation machined from 6061-T6 aluminum extrusion for excellent strength at a reasonable weight. The black hardcoat anodized finish provides real wear resistance for a build that’s going to see field use rather than sit in a safe. It ships with the charging handle and ejection port door already installed, built to DPMS Gen1 A3 low receiver height dimensions with .275-inch takedown pin holes for correct parts compatibility, and a low-profile .151-inch 1913 Picatinny rail on top for optics and iron sight mounting. This is an upper receiver only; it ships without a barrel, bolt carrier group, handguard, or lower receiver, so plan the rest of your .308 build accordingly.

Key Specifications

• Chambered for the .308 AR platform.
• Machined from 6061-T6 aluminum extrusion for strength and weight balance.
• Finished in black hardcoat anodizing for wear resistance.
• Built to DPMS Gen1 A3 low receiver height for broad parts compatibility.
• Features .275-inch takedown pin holes for correct fitment.
• Includes a low-profile .151-inch Picatinny rail for optics mounting.
• Ships with the charging handle and ejection port door already installed.

Frequently Asked Questions

Does this upper include a barrel or bolt carrier group? No, this is an upper receiver only; barrel, BCG, handguard, and gas system are sold separately.

What receiver pattern is this upper built to? It’s built to the DPMS Gen1 A3 low receiver height and hole pattern, one of the most common .308 AR platforms.

Is a lower receiver required to use this part? Yes, this upper is not itself a complete firearm and requires a compatible .308-pattern lower to build a complete rifle.

Buy the Luth-AR .308 A3 Upper Receiver

Order it from our Lubbock, Texas gun shop as soon as it’s available to ship, and start your .308 AR build on a solid, correctly-dimensioned foundation.

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